In a quadrilateral, three angles measure 100°, 90°, and 110°. What is the measure of the fourth angle?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Grade 6 FAST Mathematics Test. Study with comprehensive questions, solutions, and tips to maximize your performance and excel in your exam!

Multiple Choice

In a quadrilateral, three angles measure 100°, 90°, and 110°. What is the measure of the fourth angle?

Explanation:
The total of interior angles in a quadrilateral is always 360 degrees. Add the three given angles: 100 + 90 + 110 = 300. To reach 360, the fourth angle must be 360 − 300 = 60 degrees. So the missing angle measures 60 degrees. If you try the other options, the sums would be 370, 350, or 340, none of which equal 360, so they don’t fit.

The total of interior angles in a quadrilateral is always 360 degrees. Add the three given angles: 100 + 90 + 110 = 300. To reach 360, the fourth angle must be 360 − 300 = 60 degrees. So the missing angle measures 60 degrees. If you try the other options, the sums would be 370, 350, or 340, none of which equal 360, so they don’t fit.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy